[INFO] cloning repository https://github.com/CarsonBurke/rust-neural-network
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/CarsonBurke/rust-neural-network" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FCarsonBurke%2Frust-neural-network", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FCarsonBurke%2Frust-neural-network'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] b88ec8b9c7828fbe169cb62213475714e2e8d39d
[INFO] documenting CarsonBurke/rust-neural-network against 1.91.0 for beta-1.92-rustdoc-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FCarsonBurke%2Frust-neural-network" "/workspace/builds/worker-3-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/CarsonBurke/rust-neural-network
[INFO] finished tweaking git repo https://github.com/CarsonBurke/rust-neural-network
[INFO] tweaked toml for git repo https://github.com/CarsonBurke/rust-neural-network written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/CarsonBurke/rust-neural-network on toolchain 1.91.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.91.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/CarsonBurke/rust-neural-network already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.91.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded float-ord v0.3.2
[INFO] [stderr]   Downloaded matrixmultiply v0.3.9
[INFO] [stderr]   Downloaded serde v1.0.216
[INFO] [stderr]   Downloaded serde_derive v1.0.216
[INFO] [stderr]   Downloaded ndarray v0.16.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+1.91.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 9c763cf9972ba9d8ee238f726f368c42455647806186b0186d23132ebe963947
[INFO] running `Command { std: "docker" "start" "-a" "9c763cf9972ba9d8ee238f726f368c42455647806186b0186d23132ebe963947", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9c763cf9972ba9d8ee238f726f368c42455647806186b0186d23132ebe963947", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9c763cf9972ba9d8ee238f726f368c42455647806186b0186d23132ebe963947", kill_on_drop: false }`
[INFO] [stdout] 9c763cf9972ba9d8ee238f726f368c42455647806186b0186d23132ebe963947
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+1.91.0" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 258398633d18ce5c9e74761f8fb9c96fb03111703708c066653f7597f8624c4e
[INFO] running `Command { std: "docker" "start" "-a" "258398633d18ce5c9e74761f8fb9c96fb03111703708c066653f7597f8624c4e", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.92
[INFO] [stderr]    Compiling libc v0.2.167
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]    Compiling matrixmultiply v0.3.9
[INFO] [stderr]    Compiling serde v1.0.216
[INFO] [stderr]     Checking float-ord v0.3.2
[INFO] [stderr]    Compiling quote v1.0.37
[INFO] [stderr]    Compiling syn v2.0.90
[INFO] [stderr]     Checking num-integer v0.1.46
[INFO] [stderr]     Checking num-complex v0.4.6
[INFO] [stderr]     Checking getrandom v0.1.16
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]    Compiling zerocopy-derive v0.7.35
[INFO] [stderr]     Checking ndarray v0.16.1
[INFO] [stderr]     Checking zerocopy v0.7.35
[INFO] [stderr]     Checking ppv-lite86 v0.2.20
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]     Checking rust_neural_network v0.18.0 (/opt/rustwide/workdir)
[INFO] [stderr]  Documenting rust_neural_network v0.18.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `dw`
[INFO] [stdout]    --> src/neural_network.rs:223:17
[INFO] [stdout]     |
[INFO] [stdout] 223 |             let dw = (1.0 / &activation_layers[layer_i]) * (da.dot(&previous_activations.reversed_axes()));
[INFO] [stdout]     |                 ^^ help: if this is intentional, prefix it with an underscore: `_dw`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `db`
[INFO] [stdout]    --> src/neural_network.rs:224:17
[INFO] [stdout]     |
[INFO] [stdout] 224 |             let db = &self.bias_layers[layer_i];
[INFO] [stdout]     |                 ^^ help: if this is intentional, prefix it with an underscore: `_db`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `da_prev`
[INFO] [stdout]    --> src/neural_network.rs:225:17
[INFO] [stdout]     |
[INFO] [stdout] 225 |             let da_prev = self.weight_layers[layer_i].dot(&da);
[INFO] [stdout]     |                 ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_da_prev`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 17.29s
[INFO] [stderr]    Generated /opt/rustwide/target/doc/rust_neural_network/index.html and 1 other file
[INFO] running `Command { std: "docker" "inspect" "258398633d18ce5c9e74761f8fb9c96fb03111703708c066653f7597f8624c4e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "258398633d18ce5c9e74761f8fb9c96fb03111703708c066653f7597f8624c4e", kill_on_drop: false }`
[INFO] [stdout] 258398633d18ce5c9e74761f8fb9c96fb03111703708c066653f7597f8624c4e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-e" "RUSTC_BOOTSTRAP=1" "-e" "DOCS_RS=1" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+1.91.0" "rustdoc" "--lib" "-Zrustdoc-map" "--config" "build.rustdocflags=[\"--cfg\", \"docsrs\", \"-Z\", \"unstable-options\", \"--document-private-items\"]" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1537406ae33ecc24d4a26541e3057393ce5e97aa08e5506501350f211aec6285
[INFO] running `Command { std: "docker" "start" "-a" "1537406ae33ecc24d4a26541e3057393ce5e97aa08e5506501350f211aec6285", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.92
[INFO] [stdout] error[E0412]: cannot find type `SourceFile` in crate `proc_macro`
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/proc-macro2-1.0.92/src/wrapper.rs:366:26
[INFO] [stdout]     |
[INFO] [stdout] 366 |     Compiler(proc_macro::SourceFile),
[INFO] [stdout]     |                          ^^^^^^^^^^ not found in `proc_macro`
[INFO] [stdout]     |
[INFO] [stdout] help: consider importing one of these structs
[INFO] [stdout]     |
[INFO] [stdout]   1 + use crate::SourceFile;
[INFO] [stdout]     |
[INFO] [stdout]   1 + use crate::fallback::SourceFile;
[INFO] [stdout]     |
[INFO] [stdout] help: if you import `SourceFile`, refer to it directly
[INFO] [stdout]     |
[INFO] [stdout] 366 -     Compiler(proc_macro::SourceFile),
[INFO] [stdout] 366 +     Compiler(SourceFile),
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0412]: cannot find type `SourceFile` in crate `proc_macro`
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/proc-macro2-1.0.92/src/wrapper.rs:372:32
[INFO] [stdout]     |
[INFO] [stdout] 372 |     fn nightly(sf: proc_macro::SourceFile) -> Self {
[INFO] [stdout]     |                                ^^^^^^^^^^ not found in `proc_macro`
[INFO] [stdout]     |
[INFO] [stdout] help: consider importing one of these structs
[INFO] [stdout]     |
[INFO] [stdout]   1 + use crate::SourceFile;
[INFO] [stdout]     |
[INFO] [stdout]   1 + use crate::fallback::SourceFile;
[INFO] [stdout]     |
[INFO] [stdout] help: if you import `SourceFile`, refer to it directly
[INFO] [stdout]     |
[INFO] [stdout] 372 -     fn nightly(sf: proc_macro::SourceFile) -> Self {
[INFO] [stdout] 372 +     fn nightly(sf: SourceFile) -> Self {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `source_file` found for reference `&proc_macro::Span` in the current scope
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/proc-macro2-1.0.92/src/wrapper.rs:462:56
[INFO] [stdout]     |
[INFO] [stdout] 462 |             Span::Compiler(s) => SourceFile::nightly(s.source_file()),
[INFO] [stdout]     |                                                        ^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] help: there is a method `source` with a similar name
[INFO] [stdout]     |
[INFO] [stdout] 462 -             Span::Compiler(s) => SourceFile::nightly(s.source_file()),
[INFO] [stdout] 462 +             Span::Compiler(s) => SourceFile::nightly(s.source()),
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0412, E0599.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0412`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `proc-macro2` (lib) due to 3 previous errors
[INFO] running `Command { std: "docker" "inspect" "1537406ae33ecc24d4a26541e3057393ce5e97aa08e5506501350f211aec6285", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1537406ae33ecc24d4a26541e3057393ce5e97aa08e5506501350f211aec6285", kill_on_drop: false }`
[INFO] [stdout] 1537406ae33ecc24d4a26541e3057393ce5e97aa08e5506501350f211aec6285
